Fuel Pump Runon

raptor · 04-17-2004, 10:03 AM

Hello people, I went to get my car out of storage but ran into a problem.
With key on fuel pump comes on and keeps running.
With key out fuel pump keeps running. I have to disconnect the battery to kill the pump. If I hook the battery back up its fine until I turn the key on again.
Any suggestions?

stang_racer20 · 04-17-2004, 06:55 PM

my guess would be that your relay is sticking.

raptor · 04-18-2004, 09:39 AM

I was thinking my relay, but shouldn't it shut off with the key out??

stang_racer20 · 04-18-2004, 03:45 PM

not neccesarily cause there is power going to the relay all the time, even with key-off. Then if the switch in the relay is staying closed its always keeping the circuit open. They are only like $6 or $7. Normally u can check the relay to test if it works or doesnt work period, but I'm not sure how exactly to test if its sticking.

PKRWUD · 04-19-2004, 03:01 AM

Quote:

Originally posted by stang_racer20
Normally u can check the relay to test if it works or doesnt work period, but I'm not sure how exactly to test if its sticking.

lol, the same way you test a starter relay when it's sticking; rap it with the handle of a large screwdriver and see if it stops.

raptor · 04-19-2004, 05:52 PM

I got a relay today.

Thanks

04-17-2004, 10:03 AM	#1
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	Fuel Pump Runon Hello people, I went to get my car out of storage but ran into a problem. With key on fuel pump comes on and keeps running. With key out fuel pump keeps running. I have to disconnect the battery to kill the pump. If I hook the battery back up its fine until I turn the key on again. Any suggestions? __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-17-2004, 06:55 PM	#2
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	my guess would be that your relay is sticking. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

04-18-2004, 09:39 AM	#3
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	I was thinking my relay, but shouldn't it shut off with the key out?? __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-18-2004, 03:45 PM	#4
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	not neccesarily cause there is power going to the relay all the time, even with key-off. Then if the switch in the relay is staying closed its always keeping the circuit open. They are only like $6 or $7. Normally u can check the relay to test if it works or doesnt work period, but I'm not sure how exactly to test if its sticking. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

04-19-2004, 05:52 PM	#6
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	I got a relay today. Thanks __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

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